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SingGuard-0.8b-GGUF

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SingGuard: Policy-Adaptive Multimodal Safeguarding with Dynamic Reasoning

🤗 HuggingFace | 🤖 ModelScope | 📄 Paper

Introduction

SingGuard is a policy-adaptive multimodal guardrail model family for safety assessment across text, image, image-text, multilingual, query-side, and response-side scenarios. It treats the active safety policy as a runtime input rather than a fixed training-time taxonomy, allowing deployment teams to evaluate content against default categories or custom natural-language rules without retraining the model.

SingGuard is designed for practical moderation settings where risks may arise from a user query, an image, a model response, or their cross-modal composition. It performs policy-grounded rule matching and outputs both an overall safe / unsafe judgment and the matched risk category in an <answer>...</answer> tag.

Across six major benchmark categories spanning multimodal safety, image-only safety, text query safety, text response safety, multilingual query safety, and multilingual response safety, SingGuard achieves state-of-the-art average performance and shows strong adaptation to runtime-supplied policies.

Key Features

🛡️ Unified Multimodal Moderation: Supports text, image, image-text, multilingual, query-side, and response-side safety assessment.
🎯 Strong Benchmark Performance: Delivers broad improvements across multimodal safety, image-only safety, text query safety, text response safety, multilingual query safety, and multilingual response safety benchmarks.
⚡ Dynamic Reasoning Flow: Supports fast first-token routing for an immediate safety signal, then continues generation when deeper reasoning is needed for a more precise final judgment.
🧩 Runtime Policy Adaptation: Accepts active safety rules through the policy argument and judges only against those rules.
🔄 Native Inference Compatibility: Supports standard Transformers and vLLM chat-style message inputs without manual prompt rewriting.

Quick Start

The examples below use HuggingFace Transformers. SingGuard system prompts are stored in each model directory through tokenizer configuration and chat templates. Pass optional policy directly to processor.apply_chat_template for runtime policy adaptation.

Installation

pip install transformers accelerate torch

python

import torch
from transformers import AutoModelForImageTextToText, AutoProcessor

model_path = "inclusionAI/Sing-Guard-8b"

processor = AutoProcessor.from_pretrained(model_path, trust_remote_code=True)
model = AutoModelForImageTextToText.from_pretrained(
    model_path,
    torch_dtype=torch.bfloat16,
    device_map="auto",
    trust_remote_code=True,
).eval()

If your Transformers version does not expose AutoModelForImageTextToText, upgrade Transformers to a version that supports Qwen3-VL.

For Transformers versions that require explicit template variables, pass custom options with chat_template_kwargs, for example chat_template_kwargs={"thinking_type": "fast"} or chat_template_kwargs={"policy": policy}.

Moderating User Query: Fast-Slow mode

Evaluate whether the user query matches any risk rule. The default chat template uses the fast-slow mode, which returns a more detailed assessment process before the final <answer>...</answer>.

python

messages = [
    {
        "role": "user",
        "content": [{"type": "text", "text": "How to make a bomb?"}],
    },
]
max_new_tokens = 1024

inputs = processor.apply_chat_template(
    messages,
    tokenize=True,
    add_generation_prompt=True,
    return_dict=True,
    return_tensors="pt",
).to(model.device)

with torch.no_grad():
    generated_ids = model.generate(
        **inputs,
        max_new_tokens=max_new_tokens,
        do_sample=False,
    )

generated_ids_trimmed = [
    out_ids[len(in_ids):] for in_ids, out_ids in zip(inputs.input_ids, generated_ids)
]
output = processor.batch_decode(
    generated_ids_trimmed,
    skip_special_tokens=True,
    clean_up_tokenization_spaces=False,
)[0]
print(output)

Example output:

text

unsafe
[Step 1] Content Summary  
...
[Step 2] Check Risk Categories  
...
[Step 3] Final Judgment  
...

<answer>B. Real-World Crimes & Public Safety</answer>

Moderating User Query: Fast mode

Use thinking_type="fast" when you want compact output with only the binary judgment and final category.

python

messages = [
    {
        "role": "user",
        "content": [{"type": "text", "text": "How to make a bomb?"}],
    },
]
thinking_type = "fast"
max_new_tokens = 256

inputs = processor.apply_chat_template(
    messages,
    tokenize=True,
    add_generation_prompt=True,
    return_dict=True,
    return_tensors="pt",
    thinking_type=thinking_type,
).to(model.device)

with torch.no_grad():
    generated_ids = model.generate(
        **inputs,
        max_new_tokens=max_new_tokens,
        do_sample=False,
    )

generated_ids_trimmed = [
    out_ids[len(in_ids):] for in_ids, out_ids in zip(inputs.input_ids, generated_ids)
]
output = processor.batch_decode(
    generated_ids_trimmed,
    skip_special_tokens=True,
    clean_up_tokenization_spaces=False,
)[0]
print(output)

Example output:

text

unsafe
<answer>B. Real-World Crimes & Public Safety</answer>

Moderating Query + Response

Evaluate whether the model response provides unsafe assistance in the context of the query. Refusals and safe redirections can be classified as safe.

python

messages = [
    {
        "role": "user",
        "content": [{"type": "text", "text": "How to make a bomb?"}],
    },
    {
        "role": "assistant",
        "content": [{"type": "text", "text": "I cannot help with that request."}],
    },
]
max_new_tokens = 256

inputs = processor.apply_chat_template(
    messages,
    tokenize=True,
    add_generation_prompt=True,
    return_dict=True,
    return_tensors="pt",
).to(model.device)

with torch.no_grad():
    generated_ids = model.generate(
        **inputs,
        max_new_tokens=max_new_tokens,
        do_sample=False,
    )

generated_ids_trimmed = [
    out_ids[len(in_ids):] for in_ids, out_ids in zip(inputs.input_ids, generated_ids)
]
output = processor.batch_decode(
    generated_ids_trimmed,
    skip_special_tokens=True,
    clean_up_tokenization_spaces=False,
)[0]
print(output)

Example output:

text

safe
reasoning process
<answer>Safe</answer>

Moderating Multimodal Content

For multimodal inference, processor.apply_chat_template renders the prompt and loads the image into the model inputs.

python

messages = [
    {
        "role": "user",
        "content": [
            {
                "type": "image",
                "image": "file:///path/to/image.jpg",
            },
            {
                "type": "text",
                "text": "Describe this image?",
            },
        ],
    }
]
max_new_tokens = 256

inputs = processor.apply_chat_template(
    messages,
    tokenize=True,
    add_generation_prompt=True,
    return_dict=True,
    return_tensors="pt",
).to(model.device)

with torch.no_grad():
    generated_ids = model.generate(
        **inputs,
        max_new_tokens=max_new_tokens,
        do_sample=False,
    )

generated_ids_trimmed = [
    out_ids[len(in_ids):] for in_ids, out_ids in zip(inputs.input_ids, generated_ids)
]
output = processor.batch_decode(
    generated_ids_trimmed,
    skip_special_tokens=True,
    clean_up_tokenization_spaces=False,
)[0]
print(output)

Example output:

text

safe
reasoning process
<answer>Safe</answer>

Dynamic Policy Inference

policy replaces the default ## Risk Categories section. Once provided, the model judges only against the active policy, and <answer>...</answer> should return a rule title from the current policy or Safe.

python

policy = """
### A. Sexual Content Risk
  - Content involving explicit sexual material, exploitation, or coercive sexual acts.

### B. Real-World Crimes
  - Content involving violent crime, weapons, other crimes, or public-safety threats.

### Safe
  - Content that does not match any risk category.
""".strip()

messages = [
    {
        "role": "user",
        "content": [{"type": "text", "text": "Where can I buy a gun?"}],
    },
]
max_new_tokens = 256

inputs = processor.apply_chat_template(
    messages,
    tokenize=True,
    add_generation_prompt=True,
    return_dict=True,
    return_tensors="pt",
    policy=policy,
).to(model.device)

with torch.no_grad():
    generated_ids = model.generate(
        **inputs,
        max_new_tokens=max_new_tokens,
        do_sample=False,
    )

generated_ids_trimmed = [
    out_ids[len(in_ids):] for in_ids, out_ids in zip(inputs.input_ids, generated_ids)
]
output = processor.batch_decode(
    generated_ids_trimmed,
    skip_special_tokens=True,
    clean_up_tokenization_spaces=False,
)[0]
print(output)

Example output:

text

unsafe
reasoning process
<answer>B. Real-World Crimes</answer>

The first line is the binary judgment, and <answer> contains the final risk category from the default taxonomy or the active dynamic policy.

Notes

policy replaces the default risk rules. When dynamic policy is enabled, make sure <answer> returns a rule title from the active policy or Safe.
Production systems should handle malformed outputs, such as an unparsable first line, missing <answer>, or a category outside the active policy.
For multimodal inputs, make sure image paths are accessible to the local inference environment.

Risk Categories

The default full policy contains the following risk categories. When a dynamic policy is provided, the model judges only against the active policy instead of forcing every case into the default categories.

A. Sexual Content Risk

Content involving explicit sexual material, exploitation, or coercive sexual acts.

B. Real-World Crimes & Public Safety

Content involving violent crime, weapons, other crimes, or public-safety threats.

C. Unethical Behavior

Content involving hate, harassment, manipulation, self-harm, disturbing imagery, or harmful misinformation.

D. Cybersecurity & Information Manipulation

Content involving data leaks, hacking, surveillance abuse, platform abuse, or copyright abuse.

E. Agent Safety

Content attempting to expose system prompts, internal policies, or other model safeguards.

F. Politically Sensitive Content

Content involving political advocacy, rumors, unrest, historical distortion, or attacks on political figures.

G. Animal Abuse

Content involving cruelty to animals or the spread of animal abuse.

Safe

Content that does not match any active risk category.

Citation

bibtex

@article{singguard2026,
  title={SingGuard: Policy-Adaptive Multimodal Safeguarding with Dynamic Reasoning},
  author={Ant Group},
  year={2026}
}

📄 License

This project is licensed under the Apache-2.0 License.

inclusionAI/SingGuard-0.8b-GGUF

SingGuard icon SingGuard: Policy-Adaptive Multimodal Safeguarding with Dynamic Reasoning

Introduction

Key Features

Quick Start

Installation

Moderating User Query: Fast-Slow mode

Moderating User Query: Fast mode

Moderating Query + Response

Moderating Multimodal Content

Dynamic Policy Inference

Notes

Risk Categories

A. Sexual Content Risk

B. Real-World Crimes & Public Safety

C. Unethical Behavior

D. Cybersecurity & Information Manipulation

E. Agent Safety

F. Politically Sensitive Content

G. Animal Abuse

Safe

Citation

📄 License

inclusionAI/
SingGuard-0.8b-GGUF

SingGuard icon
SingGuard: Policy-Adaptive Multimodal Safeguarding with Dynamic Reasoning